561467464764166 has 32 divisors (see below), whose sum is σ = 905682974976000. Its totient is φ = 260215316952192.

The previous prime is 561467464764091. The next prime is 561467464764209. The reversal of 561467464764166 is 661467464764165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45368686 + ... + 56402593.

It is an arithmetic number, because the mean of its divisors is an integer number (28302592968000).

Almost surely, 2^{561467464764166} is an apocalyptic number.

561467464764166 is a deficient number, since it is larger than the sum of its proper divisors (344215510211834).

561467464764166 is a wasteful number, since it uses less digits than its factorization.

561467464764166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101774436.

The product of its digits is 2926264320, while the sum is 73.

Subtracting 561467464764166 from its reverse (661467464764165), we obtain a palindrome (99999999999999).

The spelling of 561467464764166 in words is "five hundred sixty-one trillion, four hundred sixty-seven billion, four hundred sixty-four million, seven hundred sixty-four thousand, one hundred sixty-six".